Loose-leaf binder



D. UMANOFF.

LOOSE LEAF BINDER.

APPLICATION FILED NOV. 25. ms.

1,358,265. Patented Nov. 9, 1920.

UNITED STATES PATENT OFFICE.

DAVID UMANOFF, OF NEW YORK, N. Y.

LOOSE-LEAF BINDER.

To all whom it may concern.

Be it known that I, DAVID UMANOFF, citi zen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Loose-Leaf Binders, of which the following is a specification.

This invention relates to loose-leaf binders, and aims primarily to provide such a device which is simple in operation, durable in construction, and inexpensive in cost of manufacture.

Another object of the invention is to proride a loose-leaf binder made of one piece and readily manipulated to open the same, so that one or more sheets may at any time be added or removed.

Another object of the invention is to provide such a device having a support for one or more of the cards or sheets contained therein so that said card may be stood upright for reference or for making notes thereon.

Although in the accompanying drawings 1 have illustrated my device applied to a telephone index, I do not thereby intend to limit myself in any way to such an application, as my device may just as well be used for blank books, notebooks, printed books, or any other form of book or directory.

With the above remarks in view, my invention consists in the novel construction and arrangement of parts set forth in the following description.

Referring briefly to the drawings, Figure 1 represents my device in perspective as applied to a telephone index, part of thelatter being shown dotted, as it forms no part of the present invention.

Fig. 2 represents a cross-sectional view taken substantially on the line 22 of Fig. 1, the member 10, however, beingillustrated as it appears. just before the device is applied to the back card of the index.

Fig. 3 is a rear elevational view of the binder. a

Referring now in detail to the drawings, the numeral 1 represents the main frame of my device, the same being provided with triangular holes 4 and 5. The material removed from said holes is bent back upon the Specification of Letters Patent.

vertical lines'shown at t and 5 in Fig. 1,

back of the index, so that the binder is thereby retained securely on the index back,

The ends of said binder back frame 1 are bent upward curvedly and at right angles to the frame 1 through an arc of notquite 360 degrees. The individual cards of the index, or leaves of a book, which are as usual pro- Patented Nov. 9, 1920.

Application filed November 25, 1919. Serial No. 340,665.

vided with a pair of holes at the top, are

then slipped over the curved portions 2 and 3 through their respective ends 9 and 8. After the cards or leaves are in place, the curved portions 2 and 3 are bent so that their respective ,ends 9 and 8 pass into the holes 6 and 7 in the index back. The ends thus engaged in said holes, the curved portions 2 and 3 completely encircle the upper edges of the cards or leaves, and thus retain the latter in the binder and prevent their accidental escape. In order to remove a card or leaf, or to add another, the said curved portions are grasped and lifted out of the holes 6 and 7 in order to secure the binder to the index back, the metal points 10 are first bent at right angles to the frame 1, as in Fig. 2, and are'pierced through the said back, and then folded about as shown in Fig. 3 and above described.

The ends 8 and 9 of the members 3 and 2 are straight and flat, as indicated at 11. This provides a support for the individual cards of the index, when the device is used with an index, against which said cards may be rested after being lifted and moved along the members 2 and 3, so that the user may read the card or make notes thereon.

Having thus described my invention, what I claim and desire to secure by Letters Patent is as follows:

A device of the class described, comprising a support, holding means composed of one piece, and comprising a main member having means to secure thesame to said support, said means comprisingpointed pieces of material cut out from said main member and adapted to pass into said support and to be bent so as to retain said main member in said support, the ends of said main meming provided with holes near the ends of said main member, said holes being adapted to receive the extremities of said curved 10,

ends.

In testimony whereof I afiix my'signature.

DAVID UMANOFF. 

